Lock



E. DEUTSCH Jan. 2, 1934.

LOCK

Filed Feb. 23, 1953 Patented Jan. 2, 1934 UNITED STATES PATENT OFFICE Application February 23, 1933, Serial No. 658,159, and in Austria July 6, 1932 2 Claims.

This invention relates to a lock which is designed more particularly for trunks and the like. An essential feature of this lock is that a standardized basic type of lock can be adapted for 5 operation by keys of different cross-sectional shape by virtue of the arrangement that there is placed upon the inner locking mechanism proper of the look a rotatable insert or fitting plate which is provided with an aperture corresponding to the cross-sectional shape of the key.

The manufacturer is thus enabled to put a large number of different locks on the market with the aid of a single basic type, by simply inserting into each lock during manufacture a different fitting plate adapted to the cross-sectional shape of the key to be supplied with each look.

A form of lock in accordance with the present invention is shown, by way of example, in the accompanying drawing, in which:-

Fig. 1 is a front elevation.

Fig. 2 is a section taken on the line A-A of Fig. 1, with the operative portion of the key shown inserted in the lock.

Fig. 3 is a transverse section taken on the line BB of Fig. 1, the key being shown in the position which it occupies after having been turned through 90' from the position in which it is shown in Fig. 2.

Fig. 4 shows a fitting plate with an aperture of different shape from that shown in Fig. 1.

Fig. 5 is a view of the interior of the lock in the locking position.

Fig. 6 is a similar view as Fig. 1 but with the front plate removed.

Fig. '7 is a cross section on line C-C of. Fig. 4.

Referring to the drawing, the fitting plate 0 is rotatably mounted between the front plate a of the lock and the bolt 22, by virtue of the arrange- 40 ment that the said fitting plate is provided with a chamfered projecting or bulging portion which is adapted to fit into the aperture in the front plate of the lock, and by means ofwhich the fitting plate is retained in contact with the front plate. The fitting plate is provided with an aperture which corresponds to the cross-sectional shape of the key 0. To the bolt b there is attached a knob d projecting outwards beyond the front plate of the look, by means of which the bolt can be thrust back against the action of the spring I, the head or operative end e of the bolt being thereby caused to liberate the staple or stirrup I of the hasp a.

In the locking position of the mechanism,

shown in Fig. 5, the bolt can not be withdrawn,

since its inwardly bent lug h bears against the tumbler-spring i.

At the same time the spring 2' rests by means of a step m against the stop k which projects inwards from the rear wall of the lock. On rotation of the key 0 the spring i is lifted over the stop k formed in the casing s by the foremost ward p of the key, and drawn towards the right until the second step 12 snaps into engagement with the stop It (see Fig. l).

The lock according to the invention is reliable in action and gives the impression of a Yale lock with triple tumblers.

I claim:

1. In a lock, a front plate having an opening therein, a key receiving member rotatably fitting in said opening and having a flange on its inner end bearingagainst the rear face of the front plate around said opening, and a lock bolt slidably mounted on the rear face of the front plate and bearing on the rear end of the key receiving member to hold the same in place, said lock bolt having an opening to allow a key to project through the said opening in the said lock bolt when inserted in said key receiving member.

2. In a lock, 8. front plate-having an opening therein, a key receiving member rotatably fitting in said opening and having a flange on its inner end bearing against the rear face of the front plate around said opening, and a lock bolt having offset ends bearing on the rear face of the front plate, the portion of the lock bolt between the said offset ends bearing on the rear end of the key receiving member to hold the same in place, said lock bolt having an opening to allow a key to project through the said opening in the said lock bolt when inserted in said key receiving member.

EMERICH DEUTSCH. 

